.globl begtext, begdata, begbss, endtext, enddata, endbss ! 全局标识符
.text
begtext:
.data
begdata:
.bss
begbss:
.text
BOOTSEG = 0x07c0

entry start
start:
	jmpi go, BOOTSEG
go:
	mov ax, cs
	mov ds, dx
	mov es, ax
	mov [msg1 + 17], ah
	mov cx, #18
	mov dx, #0x1004
	mov bx, #0x000c
	mov bp, #msg1
	mov ax, #0x1301
	int 0x10
loop0: jmp loop0

msg1: .ascii "Loading system ..."
	.byte 13, 10

.org 510
	.word 0xAA55

.text
endtext:
.data
enddata:
.bss
endbss:

